A force sensor for a seat of a bicycle providing in real time measurements of exerted force by a rider against a bicycle pedals through diminished force exerted thereof by the rider against the bicycle seat and additionally entailing approximate crank angle of the pedals through further analysis as the measured seat force typically consists of an alternating profile where the force is maximum when the pedals are in a horizontal position and minimum while the pedals are vertical.

A shifting system for a human-powered vehicle comprises a controller. The controller is configured to receive a driving torque and a cadence of the human-powered vehicle from at least one sensor. The controller is configured to determine a permitted shift timing based on the driving torque and the cadence. The controller is further configured to control a shift mechanism to perform a gear shift during the permitted shift timing in accordance with a permitted cadence range and a first threshold of the driving torque.

A balancing support system is for a saddle ride-type motor vehicle that includes a frame assembly including a head tube in a front portion of the frame assembly, is configured to assist a rider by balancing the motor vehicle, and includes: a steering shaft rotatably journaled about the head tube; a plurality of sensors that senses various dynamic parameters of the motor vehicle and includes a steering angle sensor; an actuator unit secured to a first portion of the frame assembly; a torque enhancer unit configured to provide a driving force from the actuator unit to the steering shaft and disposed above the head tube; and a balancing support-control unit that estimates an estimated steering angle based on inputs received from the plurality of sensors, compares the estimated steering angle with an actual steering angle, and triggers the actuator unit.

A balancing support system is for a saddle ride-type motor vehicle that includes a frame assembly including a head tube in a front portion of the frame assembly, is configured to assist a rider by balancing the motor vehicle, and includes: a steering shaft rotatably journaled about the head tube; a plurality of sensors that senses various dynamic parameters of the motor vehicle and includes a steering angle sensor; an actuator unit secured to a first portion of the frame assembly; a torque enhancer unit configured to provide a driving force from the actuator unit to the steering shaft and disposed above the head tube; and a balancing support-control unit that estimates an estimated steering angle based on inputs received from the plurality of sensors, compares the estimated steering angle with an actual steering angle, and triggers the actuator unit.

The present invention refers to a bottom bracket load sensor designed to measure the deformation of the end bearings of the bottom bracket as a result of the pedalling force. This sensor requires a special, customized design with deformation sensors arranged to measure the effective force ignoring parasitic forces. It is very important to have a true measurement, among other cases, for the optimization of the performance of electric motors on bicycles.

An electronic device is provided to a human-powered vehicle. The electronic device basically includes an electronic controller. The electronic controller is configured to selectively operate in an operational state that includes a first operational state and a second operational state. The second operational state consumes more electric power than the first operational state. The electronic controller is configured to switch the operational state between the first operational state and the second operational state in accordance with a rotational amount of a rotational body included in a transmission path of a human driving force in the human-powered vehicle.

An electronic device is provided to a human-powered vehicle. The electronic device basically includes an electronic controller. The electronic controller is configured to selectively operate in an operational state that includes a first operational state and a second operational state. The second operational state consumes more electric power than the first operational state. The electronic controller is configured to switch the operational state between the first operational state and the second operational state in accordance with a rotational amount of a rotational body included in a transmission path of a human driving force in the human-powered vehicle.

Power transmitted from a cyclist to a bicycle through crank arms is indirectly measured by performing calculations on direct physical measurements. The direct physical measurements are taken from sensors that can be non-rotationally coupled to the frame of the bicycle. The sensors can be integrated into the frame or installed as a module within a standard, unmodified bicycle bottom bracket. Measured power can be viewed by the cyclist using a wirelessly connected user interface device.

A power-measuring device includes a spindle, a power gauge, an electrical circuit, and a cover. The spindle is configured to provide a coupling with a driving unit. The spindle includes a battery chamber within a hollow space of the spindle. The battery chamber is configured to receive a battery unit. The power gauge is coupled with the spindle to measure power applied to the spindle for driving a movement of the driving unit. The electrical circuit is coupled with the spindle, and electrically coupled with the power gauge. The electrical circuit is coupled with the battery unit and configured to receive and process signals from the power gauge. The cover is coupled with the spindle and arranged to enclose at least a portion of at least one of the power gauge and the electrical circuit.

A power-measuring device includes a spindle, a power gauge, an electrical circuit, and a cover. The spindle is configured to provide a coupling with a driving unit. The spindle includes a battery chamber within a hollow space of the spindle. The battery chamber is configured to receive a battery unit. The power gauge is coupled with the spindle to measure power applied to the spindle for driving a movement of the driving unit. The electrical circuit is coupled with the spindle, and electrically coupled with the power gauge. The electrical circuit is coupled with the battery unit and configured to receive and process signals from the power gauge. The cover is coupled with the spindle and arranged to enclose at least a portion of at least one of the power gauge and the electrical circuit.